26420632512 has 56 divisors (see below), whose sum is σ = 69981787392. Its totient is φ = 8797152000.

The previous prime is 26420632453. The next prime is 26420632531. The reversal of 26420632512 is 21523602462.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99387 + ... + 250437.

Almost surely, 2^26420632512 is an apocalyptic number.

It is an amenable number.

26420632512 is an abundant number, since it is smaller than the sum of its proper divisors (43561154880).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

26420632512 is a wasteful number, since it uses less digits than its factorization.

26420632512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151977 (or 151967 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 33.

The spelling of 26420632512 in words is "twenty-six billion, four hundred twenty million, six hundred thirty-two thousand, five hundred twelve".